Dissipation of four insecticides in tomato fruit using high performance liquid chromatography and QuEChERS methodology

Insecticides play an important role in increasing agricultural production, but their extensive use has led to environmental problems including health hazards to humans. The present study was carried out to investigate the residual levels and dissipation behavior of four insecticides, namely abamecti...

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Autores principales:	Ramadan,Gomaa, Shawir,Mohamed, El-bakary,Ahmed, Abdelgaleil,Samir
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2016
Materias:	Abamectin chlorpyrifos residues Solanum lycopersicum spinosad thiamethoxam
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392016000100018
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spelling	oai:scielo:S0718-583920160001000182018-10-01Dissipation of four insecticides in tomato fruit using high performance liquid chromatography and QuEChERS methodologyRamadan,GomaaShawir,MohamedEl-bakary,AhmedAbdelgaleil,Samir Abamectin chlorpyrifos residues Solanum lycopersicum spinosad thiamethoxam Insecticides play an important role in increasing agricultural production, but their extensive use has led to environmental problems including health hazards to humans. The present study was carried out to investigate the residual levels and dissipation behavior of four insecticides, namely abamectin, thiamethoxam, spinosad, and chlorpyrifos, in tomato (Solanum lycopersicum L.) fruits under Egyptian field condition. The insecticide residues were determined after application of insecticides for three times at recommended rates. The extraction of insecticide residues was carried out by using QuEChERS method. The determination of residual levels was performed by high performance liquid chromatography coupled with diode array detector (HPLC-DAD). Recoveries were between 85% and 130%, with relative standard deviations from 1.8% to 17.0% at two fortified levels. The dissipation rates of insecticides followed first-order kinetics (Ct = 0.2627 e-0.17t, Ct = 3.7183 e-0.275t, Ct = 0.1778 e-0.407t, Ct = 0.6074 e-0.11t for abamectin, chlorpyrifos, spinosad and thiamethoxam, respectively). The values of half-life of insecticides were 4.1, 2.5, 1.7, and 6.3 d for abamectin, chlorpyrifos, spinosad and thiamethoxam, respectively. The results indicated that tomato fruits could be safely consumed after 7, 15, < 1 and 10 d of application at recommended rates for abamectin, chlorpyrifos, spinosad and thiamethoxam, respectively, according to the recommended EU maximum residue limits (MRLs).info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.76 n.1 20162016-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392016000100018en10.4067/S0718-58392016000100018
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Abamectin chlorpyrifos residues Solanum lycopersicum spinosad thiamethoxam
spellingShingle	Abamectin chlorpyrifos residues Solanum lycopersicum spinosad thiamethoxam Ramadan,Gomaa Shawir,Mohamed El-bakary,Ahmed Abdelgaleil,Samir Dissipation of four insecticides in tomato fruit using high performance liquid chromatography and QuEChERS methodology
description	Insecticides play an important role in increasing agricultural production, but their extensive use has led to environmental problems including health hazards to humans. The present study was carried out to investigate the residual levels and dissipation behavior of four insecticides, namely abamectin, thiamethoxam, spinosad, and chlorpyrifos, in tomato (Solanum lycopersicum L.) fruits under Egyptian field condition. The insecticide residues were determined after application of insecticides for three times at recommended rates. The extraction of insecticide residues was carried out by using QuEChERS method. The determination of residual levels was performed by high performance liquid chromatography coupled with diode array detector (HPLC-DAD). Recoveries were between 85% and 130%, with relative standard deviations from 1.8% to 17.0% at two fortified levels. The dissipation rates of insecticides followed first-order kinetics (Ct = 0.2627 e-0.17t, Ct = 3.7183 e-0.275t, Ct = 0.1778 e-0.407t, Ct = 0.6074 e-0.11t for abamectin, chlorpyrifos, spinosad and thiamethoxam, respectively). The values of half-life of insecticides were 4.1, 2.5, 1.7, and 6.3 d for abamectin, chlorpyrifos, spinosad and thiamethoxam, respectively. The results indicated that tomato fruits could be safely consumed after 7, 15, < 1 and 10 d of application at recommended rates for abamectin, chlorpyrifos, spinosad and thiamethoxam, respectively, according to the recommended EU maximum residue limits (MRLs).
author	Ramadan,Gomaa Shawir,Mohamed El-bakary,Ahmed Abdelgaleil,Samir
author_facet	Ramadan,Gomaa Shawir,Mohamed El-bakary,Ahmed Abdelgaleil,Samir
author_sort	Ramadan,Gomaa
title	Dissipation of four insecticides in tomato fruit using high performance liquid chromatography and QuEChERS methodology
title_short	Dissipation of four insecticides in tomato fruit using high performance liquid chromatography and QuEChERS methodology
title_full	Dissipation of four insecticides in tomato fruit using high performance liquid chromatography and QuEChERS methodology
title_fullStr	Dissipation of four insecticides in tomato fruit using high performance liquid chromatography and QuEChERS methodology
title_full_unstemmed	Dissipation of four insecticides in tomato fruit using high performance liquid chromatography and QuEChERS methodology
title_sort	dissipation of four insecticides in tomato fruit using high performance liquid chromatography and quechers methodology
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2016
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392016000100018
work_keys_str_mv	AT ramadangomaa dissipationoffourinsecticidesintomatofruitusinghighperformanceliquidchromatographyandquechersmethodology AT shawirmohamed dissipationoffourinsecticidesintomatofruitusinghighperformanceliquidchromatographyandquechersmethodology AT elbakaryahmed dissipationoffourinsecticidesintomatofruitusinghighperformanceliquidchromatographyandquechersmethodology AT abdelgaleilsamir dissipationoffourinsecticidesintomatofruitusinghighperformanceliquidchromatographyandquechersmethodology
_version_	1714205357630291968

Dissipation of four insecticides in tomato fruit using high performance liquid chromatography and QuEChERS methodology

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